75754

Appears in sequences

• a(n) = [ a(n-1)/a(1) ] + [ a(n-2)/a(2) ] + ... + [ a(1)/a(n-1) ], for n >= 3.at n=35A022870
• a(n) = ceiling(x(n)), where x(n) = 3*x(n-1)/2 and x(1) = 1.at n=26A117590
• a(n) = round(2*(3/2)^n), using round-to-even method.at n=25A147789
• Number of edges in a complete bipartite graph where the vertices in the two parts are placed on opposite sides of a parabola at integer x coordinates |x| = 1, 2, ...n.at n=20A392427